Improvement Results for Oscillatory Behavior of Second Order Neutral Differential Equations with Nonpositive Neutral Term
R. Arul *
Department of Mathematics, Kandaswami Kandar's College, Velur - 638 182, Namakkal Dt. Tamil Nadu, India.
V. S. Shobha
Department of Mathematics, Kandaswami Kandar's College, Velur - 638 182, Namakkal Dt. Tamil Nadu, India.
*Author to whom correspondence should be addressed.
Abstract
In this paper we obtain new criteria for the oscillation of all solutions of second order neutral differential equations with nonpositive neutral term, which improve some of the results in [1]. Examples are provided to illustrate the main results.
Keywords: Oscillation, neutral differential equation, nonpositive neutral term.